Home / 12,254.76-18,380.46-5,328.36

Finding the Fourth Proportional to 12,254.76, 18,380.46 and 5,328.36

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Solution

The fourth proportional to 12,254.76, 18,380.46 and 5,328.36 is: 7,991.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.76 : 18,380.46 = 5,328.36 : x
  2. Step 2: Convert to fraction form
    12,254.76/18,380.46 = 5,328.36/x
  3. Step 3: Cross multiply
    12,254.76x = 18,380.46 × 5,328.36
  4. Step 4: Simplify right side
    12,254.76x = 97,937,707.85
  5. Step 5: Solve for x
    x = 97,937,707.85/12,254.76
  6. Step 6: Final answer
    x = 7,991.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.